Three months after police fatally shot a 17-year-old armed robbery suspect, members of the Jacksonville Sheriff's Office recounted critical moments of when they made that life-or-death decision.

On Wednesday, a JSO review board had to decide whether the shooting was within department guidelines.

According to investigators, four teens -- Richard Douglas, Kenneth Duncan, Robert Wallace and Kenneth Marion -- robbed the Gate Gas Station on Hendricks Avenue in February.

Marion was shot and killed by an officer about a block from the gas station.

As board members listened to the officers' testimony, they also examined evidence from the armed robbery, including pictures of one robbery suspect pointing two handguns at the clerk while two others stood on either side of the clerk.

Investigators said the person seen in the photos taking money from the cash register is Marion.

The review board members also heard emergency calls made by officers at the scene and looked at photos of evidence taken immediately after the incident.

Among the photos shown were the suspects fleeing the gas station, a gun found on the ground near Marion along with a pile of cash that detectives believe were from the robbery, another gun on the roof of the gas station and the clerk's wallet.

Police said they believe the teens threw the wallet and the second gun on the roof during their attempted getaway.

The three teens allegedly with Marion the night of the robbery have been charged with murder because they're accused of committing a felony when Marion was shot and killed by police.

Officer Daryl Edmonds was one of the officers chasing the teens on the night Marion was shot.

"I ordered him to stop. He had his hands in his waistband and I couldn't see what it was in his hands. I started to squeeze the trigger on my weapon and all of a sudden I see a policeman, which was officer Clark's head, in front of me, and I come off target, hear one shot, which was from officer Clark's firearm," Edmonds said.

Officer Bernard Clark told the review board he fired that shot following a brief chase because he was told there had been a violent robbery, and that the suspects were armed.

"I was in fear of my life and the lives of the residents that were going into the backyards and the other officers that were possibly in the area, so as he laid his body towards me I fired," Clark said.

That shot killed Marion.

With Marion's family watching, the panel took a vote and unanimously sided with the officers involved in the shooting, saying their actions followed JSO procedures for use of force.

The JSO review board on Wednesday also said that another fatal police shooting, the one near Mayport Road, was also within departmental guidelines.

Police shot and killed 32-year-old Addar Kennedy on Feb.8. He was shot during a routine police drug sweep on George Street.

The officers involved testified that Kennedy approached them that night, and then tried to run.

They said that once caught, Kennedy struggled with three officers.